This is a weirdness of the bicameral thing built into the Constitution. Small states were supposed to get outsized representation in order to balance their power against the big states - Separation of Powers and Minority Rights and all that. Repubs have taken it to mean they get to rule from the minority instead of governing in partnership with the majority. I don't know how to fix it, but there's much to be done. And I think it's fairly obvious that we won't get anywhere without a GOP that's a shitload more honorable than what we've seen from them in the last 30 years or so.
The basic approach is pretty simple. First, you throw out the rules that keep powerful people more or less in line thru the reasonable expectation that they'll stay true to their word, and conduct themselves with some sense of fairness and integrity - the honor of normal decent people is what makes them generally more trustworthy than not. Second, throw every piece of shit you can find into the air conditioning system. Keep everybody so busy just trying to catalog it that they have no time or energy even to triage all the shit. Third, look for the pieces of shit that provide the greatest benefit (money &/or power) while attracting the least amount of attention (ie: resistance).
"...Trump combined two of his favorite things - firing people, and screwing them out of their money. If Andrew McCabe were a porn star, Trump would've scored a hat trick."